GGG-D-777B Driver, Projectile Unit, Powder Actuated (High

GGG-D-777b October 31, 1966 SUPERSEDING Fed. Spec. GGG-D-777a August 14, 1958

FEDERAL SPECIFICATION

DRIVER, PROJECTILE UNIT, POWDER ACTUATED (HIGH VELOCITY) (ABOVE WATER ONLY); PIN, DRIVE, POWDER ACTUATED; AND CARTRIDGE, POWDER ACTUATED TOOL

This specification was approved by the Commissioner, Federal Service, GeneralServices Administration, for the use of Federal agencies.

1. SCOPE AND CLASSIFICATION

1.1 Scope. This specification covers powder actuated projectile unitdriver, drive pins, and power loads, for use above water only.

1.1.1 Federal specification coverage. Federal specifications do not coverall varieties of the commodity indicated by the titles of the specifications,but include only those generally used by the Federal Government.

1.2 Classification. Drivers, drive pins, and power loads shall be of thefollowing classification.

1.2.1 Drivers. The drivers shall be of the following classes and stylesas specified (see 6.2):

Class 1--1/4-inch barrel, full duty.

Class 2--3/8-inch barrel, full duty.

Class 3--1/4 and 3/8-inch interchangeable barrels.

Style A--Full duty, both barrels Style B--Full duty, except 3/8-inch barrel not required to drive fasteners with shank diameter of 1/4-inch into steel above 3/8-inch thickness.

Class 4--Drivers with safety attachments to arrest free flight ofdrive pins.

Style A--Round barrel 1/4-inch drive pins. Style B--Square barrel 1/4 and 3/8-inch drive pins.

1.2.2 Drive pins. Drive pins shall be of the following sizes and stylesas specified (see 6.2):

Size 1/4-inch drive pins shall be of the following styles:

Style A--Drive pin for steel. Style B--Drive pin for concrete. Style C--Drive stud, external threaded for steel. Style D--Drive stud, external threaded for concrete. Style E--Drive stud, flush internal threaded for concrete.

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Size 3/8-inch drive pins shall be of the following styles:

Style A--Drive pin for steel. Style B--Drive pin for concrete. Style C--Drive stud, external threaded stud for steel. Style D--Drive stud, external threaded for concrete. Style G--Drive stud, combination headed for steel. Style H--Drive stud, combination headed for concrete. Style I--Drive stud, driver head and external threaded for concrete.

1.2.3 Power loads. Power loads shall be furnished in 22-, 25-, 32-, and38-caliber and of the strength specified (see 6.2).

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2. APPLICABLE DOCUMENTS

2.1 Specifications and standards. The following specifications andstandards, of the issues in effect on date of invitation for bids or requestfor proposal, form a part of this specification to the extent specifiedherein.

Federal Specification:

PPP-B-566--Boxes, Folding, Paperboard PPP-B-585--Boxes, Wood, Wirebound. PPP-B-591--Boxes, Fiberboard, Wood-Cleated. PPP-B-601--Boxes, Wood, Cleated-Plywood. PPP-B-621--Boxes, Wood, Nailed and Lock-Corner. PPP-B-636--Box, Fiberboard PPP-B-676--Boxes, Setup. PPP-T-60--Tape: Pressure-Sensitive Adhesive, Waterproof, for Packaging.

Federal Standards:

Fed. Std. No. 123--Marking for Domestic Shipment (Civilian Agencies). Activities outside the Federal Government may obtain copies of FederalSpecifications, Standards, and Handbooks as outlined under GeneralInformation in the Index of Federal Specifications and Standards and at theprices indicated in the Index. The Index, which includes cumulative monthlysupplements as issued, is for sale on a subscription basis by theSuperintendent of Documents, U.S. Government Printing Office, Washington,D.C. 20402.

(Single copies of this specification and other product specificationsrequired by activities outside the Federal Government for bidding purposesare available without charge at the General Services Administration RegionalOffices in Boston, New York, Washington, D.C., Atlanta, Chicago, Kansas City,Mo., Dallas, Denver, San Francisco, Los Angeles, and Seattle, Wash.)

(Federal Government activities may obtain copies of Federal Specifications,Standards, and Handbooks and the Index of Federal Specifications andStandards from established distribution points in their agencies.)

Military Specifications:

MIL-P-116--Preservation, Methods of. MIL-B-121--Barrier Material, Grease-proofed, (Waterproofed), Flexible. MIL-P-3542--Primer; Pressure-Sensitive Tape. MIL-L-10547--Liners, Case, and Sheet, Overwrap; Water-Vaporproof or Waterproof, Flexible MIL-S-16113--Steel Plate, Hull and Ordnance, Structural, Black (Un- coated) and Zinc Coated (Galvanized).

Military Standards:

MIL-STD-105--Sampling Procedures and Tables for Inspection by Attributes. MIL-STD-129--Marking for Shipment and Storage.

(Copies of Military Specifications and Standards required by contractors inconnection with specific procurement functions should be obtained from theprocuring activity or as directed by the contracting officer.)


2.2 Other publications. The following documents form a part of thisspecification to the extent specified herein. Unless otherwise indicated,the issue in effect on date of invitation for bids or request for proposalshall apply.

National Bureau of Standards (NBS) Handbook:

H28--Screw-Thread Standards for Federal Services.

(Application for copies should be addressed to the Superintendent ofDocuments, U.S. Government Printing Office, Washington D.C., 20402.)

Interstate Commerce Commission Regulation:

49 CFR 71-78--Interstate Commerce Commission Rules and Regulations for Transforation of Explosives and Other Dangerous Articles.

(The Interstate Commerce Commission Regulations are now a part of the Codeof Federal Regulations, 1949 Edition--Revised 1950, available from the

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GGG-D-777bSuperintendent of Documents, U.S. Government Printing Office, Washington,D.C., 20402. Orders should cite "49-CFR-7178").

3. REQUIREMENTS

3.1 Illustrations. The illustrations shown herein are for the convenienceof identification and are not intended to preclude the purchase of drivers,drive pins, or power loads which are otherwise in accordance with therequirements of this specification.

3.2 Qualification. Drivers, drive pins, and power loads furnished underthis specification shall be a product which has been tested and passed thequalification tests specified herein and has been listed on, or approved forlisting on, the applicable qualified products list (Q.P.L.).

3.3 Drivers

3.3.1 Design. Drivers shall be designed for the use of individual highvelocity (over 300 feet per second) power loads, and drive pin fasteners, andshall be fabricated to operate as a unit and enable the operator to locateand drive a pin or stud efficiently in a horizontal, vertical, or overheadposition. The loading and reloading of the power load and fastening stud orpin shall be easily and quickly accomplished by use of the hands withoutemploying tools of any kind other than a stud or pin positioner forpositioning fasteners in the barrel. The driver shall be easy, safe, andconvenient to operate and all parts subject to wear shall be readilyaccessible for adjustment and repair. The driver shall comply with theperformance test specified in 4.4.

3.3.2 Component parts. The drive shall consist essentially of a barrel orbarrel assembly, firing pin mechanism, safety lock mechanism, a suitablehousing, handgrip, and safety shield.

3.3.2.1 Barrel or barrel assembly. The barrel or barrel assembly shall beof high-grade alloy steel heat-treated to develop sufficient strength toresist the stress imposed by the shock of the exploding propellant and resistpermanent deformation in the event the barrel should become accidentallyplugged. The barrel shall be provided with a precision size bore toaccurately accommodate the type of drive pin fasteners designed for use withthe respective classes and style of driver.

3.3.2.2 Firing pin mechanism. The firing pin mechanism shall be of heat-treated high-grade steel, properly protected against corrosion. The firingpin shall be locked in position away from the cartridge by a primary andsecondary control to prevent firing until the tool has been fully depressedand is in contact with the surface of the work.

3.3.2.3 Threads. The threaded parts shall be in accordance with NBS H28.

3.3.2.4 Safety mechanism. The safety mechanism shall control theoperation of the firing pin mechanism. The safety mechanism shall be soconstructed to prevent accidental discharge and shall function only bydeliberate act of the operator.

3.3.2.5 Housing. The housing shall be of a material of suitablecharacteristics to withstand any possible shock or stress imposed by otherrelate parts.

3.3.2.6 Handgrip. The handle grip shall be well-proportioned and of asuitable shape and size to provide a comfortable nonslip handgrip.


3.3.2.7 Safety shield (guard). A guard shall be attached either to thehousing at the muzzle end of the barrel or to the action tube which enclosesthe barrel. The guard shall be designed in manner to prevent any possibilityof the tool being fired when the guard is detached from the driver. Theguard shall completely cover the point of application to protect bothoperator and bystanders from possible injury by ricochet of fasteners andflying particles of the material being penetrated when the tool isdischarged. In order to drive fasteners closer to a wall, means shall be

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provided to position one edge of the guard within 13/16 inch of the barrel onclasses 1 and 3 drivers and within 1-1/4 inches on class 2 drivers. Theedges of the guard shall have permanent marks to indicate the centerline ofthe barrel.

3.3.2.8 Special safety shields (guards). When specified (see 6.2),special guards shall be furnished for fastening structural angle or channel,electrical outlet boxes, conduit clips, duct hangers or other specialstructural forms or fittings where the standard guard does not offer completeprotection to the operator.

3.3.3 Finish. The internal and external surfaces shall be substantiallyfree from pits, nodules, burrs, cracks, and other detrimental defects.

3.3.4 Coating. Unless constructed of a non-corrosive material, allinternal and external surfaces shall have a suitable protective coating.

3.3.5 Safety features. The safety features and operation of the drivershall incorporate the following:

(a) Drivers with the guard or shield removed shall be incapable of firing. (b) The driver shall not be capable of firing except when the muzzle end of the barrel is fully depressed by forceful contact with the working surface, and the guard or shield is flush with the working surface of the material. (c) With the driver fully depressed, it shall not fire when the guard or shield is canted or tilted more than 7 deg. from right angles to the working surface of the material into which the drive pin is being driven. (d) The driver shall not fire if dropped, jarred, bumped, or subjected to an impact of any kind.

3.3.6 Class 1, 1/4-inch barrel, full duty. Class 1 drivers shall complywith the requirements specified herein, and shall be capable ofsatisfactorily driving pins conforming to tables I through VI. The bore ofthe barrel shall be 0.250 inch minimum diameter and 0.2525 inch maximumdiameter. Class 1 drivers shall weigh not more than 8 pounds and shall besimilar to figure 1.


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3.3.7 Class 2, 3/8-inch barrel, full duty. Class 2 drivers shall complywith the requirements specified herein, and shall be capable ofsatisfactorily driving pins conforming to tables VII through XII. The boreof the barrel shall be 0.375-inch minimum diameter and 0.378-inch maximumdiameter. Class 2 drivers shall weigh not more than 11-1/4 pounds and shallbe similar to figure 2.


3.3.8 Class 3, 1/4- and 3/8-inch inter-changeable barrels. Class 3drivers shall comply with the requirements specified here-in, and shall bedesigned to permit interchanging of 1/4- and 3/8-inch barrels. Bore of the1/4-inch barrels shall conform to class 1 drivers, and bore of 3/8-inchbarrels shall conform to class 2 drivers. Class 3 drivers shall be suppliedin style A full duty both 1/4- and 3/8-inch barrels, or style B full duty1/4-inch barrel and limited duty for 3/8-inch barrel. Class 3 drivers shallbe similar to figure 3 and shall weigh no more than 12 pounds.


interchangeable barrels.

3.3.8.1 Style A, full duty, both barrels. Style A drivers with the 1/4-inch barrel inserted shall be capable of satisfactorily driving pinsconforming to tables I through VI. Style A drivers with the 3/8-inch barrelinserted shall be capable of satisfactorily driving pins conforming to tablesVII through XIII.

3.3.8.2 Style B, full duty, except 3/8-inch barrel not required to drivepins with shank diameter of 1/4-inch into steel above 3/8-inch thickness. Style B drivers shall conform to class 3, style A drivers except that theyare not required to drive 3/8-inch pins with shank diameter of 1/4 inchthrough steel greater than 3/8-inch thickness.

3.3.9 Class 4 drivers with safety attachment kits. Class 4 drivers shallbe similar to classes 1, 2, or 3 drivers except that the standard barrel,breech plug, and safety shield shall be replaced by a safety attachment,designed to arrest the pin when fired under conditions offering little or noresistance. Class 4 drivers shall be furnished in style A for 1/4-inch pinsor style B for 1/4- and 3/8-inch pins.

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3.3.9.1 Class 4, style A. Class 4, style A drivers shall have a roundbarrel suitable for driving 1/4-inch pins as specified in tables I throughVI.

3.3.9.2 Class 4, style B. Class 4, style B drivers shall be furnishedwith a square barrel for 1/4- and 3/8-inch drive pins, and shall be capableof driving any of the pins listed herein when using the applicable piston andsafety guard.

3.3.10 Marking, driver. Each driver shall be marked in a plain andpermanent manner or shall be provided with a suitable name-plate securelyattached to the tool. The marking shall designate the manufacturer' name ora trademark of such known character that the source of manufacture may bereadily determined. The words "FOR USE ONLY BE CERTIFIED OPERATOR" shallalso be included in the marking.

3.3.11 Repair parts. The successful bidders supplying drivers covered bythis specification shall make available and furnish repair parts whenrequested, except parts which the manufacturer restricts for factory fittingand assembly as a safety measure. All parts having the same manufacturer'spart number shall be constructed to definite standards, tolerances, andclearances in order that such parts may be completely interchangeable,replaced, or adjusted without requiring modification, except those partsrestricted for factory fitting and installation.

3.3.12 Accessory equipment.

3.3.12.1 Carrying case. Each driver shall be provided with a carryingcase. The carrying case shall be sheet steel and shall be substantial, of atleast 22-gauge steel, and of a rigid construction for storage andtransforation of the driver and accessories. The case shall be provided withtray suitable for carrying pins, power loads, tools, and other maintenanceequipment required for operation of the tool. The carrying case shall have asubstantial carrying handle and shall be provided with either a catch or haspwith staple for securely retaining the hinged cover in a closed position. The interior and exterior surfaces of each carrying case shall have a durablecoating of paint or enamel. Each case shall contain a drive pin referencedata sheet for illustrating the various styles, sizes, and usage of drivepins designed for use with the driver provided.

3.3.12.3 Equipment. The equipment for each driver shall consist of thenecessary tools required for operation and normal maintenance.

3.3.13 Operator's instruction and maintenance manual. The two copies ofoperator's instruction and maintenance manual shall be supplied with eachdriver. The manual shall include instructions for a step-by-step properoperating procedure and clearly illustrate all parts necessary in themaintenance of the driver. The instruction shall include the proper methodsof cleaning, oiling, and care of the driver to assure satisfactoryperformance. The manual shall also contain the following mandatory safetyregulations:

AUTHORIZED PERSONNEL (a) Personnel operating drivers shall be instructed and certified by the manufacturer's representative, or a responsible official of the using activity, in the operation of each class and style of tool. (b) In the course of instruction, the extreme danger in the use of the


drivers shall be stressed and the personnel certified to operate the tool shall be cautioned that unqualified persons shall not be allowed to operate or handle the tools at any time.

IDENTIFICATION CARDS (a) Personnel certified to operate drivers shall be issued identification cards signed by a responsible official of the using activity.

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(b) Identification cards shall clearly state the manufacturer's name, the class, and style of tool for which the operator has been instructed and certified to use. (c) A master record of identification cards issued shall be maintained at the point of issue. This record shall correspond with the identification cards issued to the operators. (d) In no instance shall a tool be issued to an operator other than the tool of the manufacturer's class and style shown on the identification card issued to the operator.

STORAGE AREA (a) When not in use, the driver, power loads, and drive pins shall be stored in a moisture-proof area under lock and key. (b) Only authorized personnel shall have access to the storage area. (c) Special precautions shall be taken to prevent unauthorized personnel from having access to the storage area.

MATERIALS AND DRIVING DISTANCES (a) The manual shall include a list of materials unsuitable for driving pins. (b) Materials on which the driver is to be used shall be such as to offer enough resistance to prevent the pins from passing completely through the material. (c) Drive pins shall be driven not less than the following distance from the edge of a structural surface or when fastening steel shapes, wood 2 by 4's or comparable material to concrete. Under 7/32-inch shank diameter; 3, 3/4, and 2-inches, respectively. 7/32-inch and over shank diameter; 5, 1, and 4 inches, respectively. (d) Sandbags, timbers, or other materials capable of stopping the drive pin shall be placed directly behind the work area, if necessary, to insure safety to the personnel. (e) Preliminary tests of the strength of the material and of the drive pins shall be made before starting the work operations.

OPERATING PRECAUTIONS (a) Personnel certified to operate drivers shall be provided with chipper goggles or face shield and a hard hat. (b) The driver shall never remain loaded when not in use. (c) The driver shall never be loaded while being transported. (d) If for any reason the work is interrupted after loading, the driver shall be unloaded immediately. (e) In case of misfire, the driver shall be held in the operating position for not less than 30 seconds. The driver shall be opened and the power load shall be removed before removing the guard from the working surface. (f) At on time shall an attempt be made to experiment or make adjustment to the driver, except by instructions from the manufacturer. (g) The driver shall not be used where there is evidence of a combustible atmosphere. (h) Power loads and drive pins shall be kept in their respective containers and separate from other equipment. (i) Defective power loads shall not be thrown into trash containers or otherwise discarded. They shall be returned and properly disposed of by the issuing personnel. (j) Power loads shall be kept in a metal container with the word "EXPLOSIVE" conspicuously lettered thereon. (k) The operator shall begin with light loads and progress to the heavier loads when determining correct power loads for a


particular application.

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CONTACT WITH MANUFACTURER (a) The manufacturer shall be contacted immediately if any difficulty is experienced in the use of the driver. (b) Defective drivers shall be removed from service until proper repairs have been completed.

3.4 Drive pins. Drive pins shall be of the type, style, sizes anddimensions specified herein. Pin covered shall be suitable for theapplications shown on figure 4.

3.4.1 General applications. The general application of drive pins asshown on figure 4 shall apply to all the various fasteners designed for usewith the respective classes and styles of drivers.

3.4.2 Driver pin fasteners. The drive pin fasteners shall be of high-quality steel heat-treated to a Rockwell hardness value of not less than 45nor more than 55 on the C scale (see 4.5.2.1). Each drive pin shall beprovided with a suitable tip or collar for holding or retaining the pin inthe barrel preparatory to firing. The drive pin fasteners shall have anoncorrosive coating. The drive pin fasteners illustrated hereinafterinclude only those most generally used. When special pins or other sizes arerequired, they shall be as specified (see 6.2). Drive pins shall meet thebend test specified in 4.5.2.2.

3.4.2.1 Threads, drive pin studs. All threaded studs shall have threadsin conformance with NBS H28.

3.4.3 Studs and pins for 1/4-inch barrels. Studs and pins for 1/4-inchbarrels shall be similar to figures 5 through 9 and shall conform to thesizes and dimensions listed in tables I through VI for the style and pins for(see 6.2). The shank of studs and pins for driving into steel shall have astraight knurl. The shank of studs and pins for driving into concrete shallbe smooth. All Studs and pins shall have conventional shaped points. Theheads of pins shall be flat or slightly oval shaped on top. Studs and pinsshall conform to the hardness specified herein when tested in accordance withthe test requirements of section 4.


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3.4.4 Studs and pins for 3/8-inch barrels. Studs and pins for 3/8-inchbarrels shall conform to the dimensions of tables VII through XIII, asapplicable. Studs and pins shall be similar to figures 10 through 17 for thestyle as specified (see 6.2). The shank of studs and pins for driving intosteel shall have a straight knurl. The shank of studs and pins for drivinginto concrete shall be smooth. All Studs and pins shall have conventionalshaped points. The heads of pins shall be flat or slightly oval shaped ontop. Studs and pins shall conform to the hardness specified herein whentested in accordance with the test requirements of section 4.

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3.5 Power loads. The power loads shall be of the clean burning smokelesstype packed in a suitable cartridge case and primed with a noncorrosivepriming mixture. The power loads shall be independent of the fasteners andsupplied individually not to form live ammunition. The power load shall beof the caliber and strength recommended by the driver manufacturer for thedesired penetration in steel or concrete. Power loads shall be furnished in22-, 25-, 32-, or 38-caliber, and of the strength specified (see 6.2).

3.5.1 Power load strength and identification. Power load strength shallbe described by load numbers ranging from one to twelve with the strengthsincreasing in steps as the numbers increase. The strength of each power loadshall be identified by the cartridge case and load color as shown in tableXIV. The wadding of each power load shall be marked with the proper loadcolor.

Table XIV. Power load identification ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ ³ Color identification ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Load ³ Cartridge case color ³ Load color ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ ³ ³ 1 ³ Brass ³ Gray 2 ³ Brass ³ Brown 3 ³ Brass ³ Green 4 ³ Brass ³ Yellow 5 ³ Brass ³ Red 6 ³ Brass ³ Purple ³ ³ 7 ³ Nickel ³ Grey 8 ³ Nickel ³ Brown 9 ³ Nickel ³ Green 10 ³ Nickel ³ Yellow 11 ³ Nickel ³ Red 12 ³ Nickel ³ Purple ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 3.5.2 Power load containers. All power loads in each containers shall beof the same strength and caliber. At least one panel of each container shallbe clearly marked with the proper color in writing, caliber, cartridge casecolor and power load number on the proper color background. The markingshall be in the form of a dial as shown on figure 18. The dial shall be notless than 1-3/8 inches in diameter.


3.6 Workmanship. The workmanship of the drivers, drive pins, and powerloads shall be of a quality prevailing among manufacturers normally producingthe classes and styles of equipment specified herein.

4. QUALITY ASSURANCE PROVISIONS

4.1 Responsibility for inspection. Unless otherwise specified in thecontract or purchase order, the supplier is responsible for the performanceof all inspection requirements as specified herein. Except as otherwisespecified, the supplier may utilize his own facilities or any commerciallaboratory acceptable to the Government. The Government reserves the rightto perform any of the inspections set forth in the specification where suchinspections are deemed necessary to assure that supplies and services conformto prescribed requirements.

4.2 Qualification testsÀ1Ù. Qualification tests shall be conducted at alaboratory satisfactory to the Naval Ship Engineering Center. Qualificationtests shall consist of the examination of 4.3.1 and all the tests of 4.4 and4.5.

À1Ù Application for qualification test shall be made in accordance with "Provisions Governing Qualifications" (see 6.3 and 6.4).

4.2.1 Samples for qualification tests. The manufacturer shall submit onedriver and one drawing of each class and style for which qualificationapproval is desired, complete with 50 power loads of each strength and studsas specified in table XV, for the class and style to be tested.

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4.2.2 Sampling for quality conformance inspection.

4.2.2.1 Lot. All drivers of the same class or style presented at one timeshall be considered a lot for purposes of quality conformance inspection. All drive pin fasteners of the same style, size, and all power loads of thesame strength presented at one time shall be considered a lot for purposes ofquality conformance inspection.

4.2.2.2 Sampling. A random sample of drivers, drive pins, and power loadsshall be selected from each lot in accordance with MIL-STD-105 at inspectionlevel III. The acceptable quality level (AQL) shall be 1.5 percentdefective.

4.2.3 Classification of tests. Inspection and testing of drivers, driverpins, and power loads shall be classified as follows: (a) Qualification tests (b) Quality conformance inspection.

4.3 Quality conformance inspection. Quality conformance inspection shallbe applied to each sample selected in accordance with 4.2.2.2. Failure topass the examination or one or more of the tests specified shall be cause forrejection. Quality conformance inspection shall consist of the following: (a) Examination (4.3.1). (b) Tests (4.5). (c) Inspection of preparation for delivery (4.6).

4.3.1 Examination. Each of the sample drivers, drive pins, and powerloads selected in accordance with 4.3.3.3 shall be examined. Drivers shallbe examined for design, component parts, accessory equipment, safetyfeatures, finish, coatings, marking, operator's manual, and workmanship. Drive pins shall be examined for style and dimension. Power loads shall beexamined for strength color. Any sample containing one or more defects shallnot be offered for delivery. If the number of defectives in any sampleexceeds the acceptance number for that sample, this shall be cause forrejection of the lot represented by the sample.

4.4 Performance and safety tests. Performance of the drivers shall bedetermined by driving specified drive pins in steel plates and concreteblocks. Safety of the drivers shall be determined by the drop test (4.4.3),and for class 4 drivers, the safety attachment kit firing test (4.5.2).

Table XV. Drive pins required for performance and qualification testsÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ ³ Shank size of studs for ³ Shank size of studs Driver ³ steel, style C ³ concrete, style D ÄÄÄÄÄÄÂÄÄÄÄÄÂÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÂÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄ ³ ³Size³ ³ ³ ³ ³ ³ ³ ³ of ³ ³ ³ ³ ³ ³ ³ ³bar-³ ³Length ³Quan-³ ³ ³ Quan-Class ³Style³rel ³ Diameter ³=5 64 ³tity ³ Diameter ³ Length ³ tityÄÄÄÄÄÄÅÄÄÄÄÄÅÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÅÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄ ³ ³ ³ ³ ³ ³ ³ ³ ³ ³Inch³ Inch ³ Inches³ ³ Inch ³ Inches ³1 ³ -- ³1/4 ³0.155=0.010³ 11/16³ 36 ³0.160=0.015³1-1/4 =1/32³ 362 ³ -- ³3.8 ³ .250= .005³1-3/16 ³ 36 ³ .250= .005³1-27/32=1/8 ³ 363 or 4³ A ³1/4 ³ .155= .010³ 11/16³ 36 ³ .160= .015³1-1/4 =1/32³ 363 ³ A ³3/8 ³ .250= .005³1-3/16 ³ 36 ³ .250= .005³1-27/32=1/8 ³ 363 or 4³ B ³1/4 ³ .155= .010³ 11/16³ 36 ³ .160= .015³1-1/4 =1/32³ 363 or 4³ B ³3/8 ³ .250= .005³1-3/16 ³ 36 ³ .250= .005³1-27/32=1/8 ³ 36


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4.4.1 Steel test. The steel used shall be black (uncoated) medium steel,grade M conforming to MIL-S-16113 in strips not less than 4-inches wide inthicknesses of 1/4-, 3.8-, 1/2-, 5/8-, and 3/4-inch, having a Brinellhardness of 126/140. Three or more of the studs specified in table XV, foruse in steel for the size barrel, class, and style of driver under test shallbe driven the full depth of the shank into the plates of the thicknessesspecified in table XVI, except that steel above 3/8-inch thickness does notapply to 3/8-inch barrel of class 3, Style B, and 1/4-inch drive pins shallnot be required to fasten 3/4-inch steel plate. For acceptability, theaverage pull-out force of the studs driven in each plate thickness shallequal or exceed in the minimum pull-out force values given in table XVI forthe size of barrel, class, and style of driver under test.

Table XVI. Minimum pull-out force of studs in steel.ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Steel plate Pull-out force Pull-out force thickness for 1/4-inch for 3/8-inch barrel barrel (min.) (min.) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Inch Pounds Pounds 1/4 2000 3800 3/8 2400 6000 1/2 2200 7000 5/8 1800 7000 3/4 6000 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

4.4.2 Concrete test. Three or more of the studs specified in table XV foruse in concrete for the size of barrel, class, and style or drive under testshall be driven the full depth of the shank in seasoned concrete blockshaving a compression strength of approximately 1500, 2500, 3500, and 4000p.s.i. The blocks shall be 24 by 30 by 9 inches in thickness, reinforced 2inches below each 24 by 30-inch face and 2 inches in from each side. Foracceptability, the average pull-out force of the studs driven in each classof concrete shall equal or exceed the minimum pull-out force values given intable XVII for the size of barrel, class, and style of driver under test.

Table XVII. Minimum pull-out force of studs in concreteÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Class of concrete ³ Pull-out force ³ Pull-out force (compression ³ for 1/4-inch ³ for 3/4-inch strength) ³ barrel ³ barrel ³ (min.) ³ (min.) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ ³ ³ P.s.i. ³ Pounds ³ Pounds 1500 ³ 700 ³ 800 2500 ³ 800 ³ 900 3500 ³ 800 ³ 1000 4000 ³ 800 ³ 1000 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

4.3.3 Drop test. The driver shall be loaded with a live cartridge anddropped three times from a height of 10 feet onto a concrete surface, in sucha way that it will land on the muzzle, on the handle, and on the side. Thedriver shall be rejected if it fires as a result of the test or if it doesnot meet the requirements of 3.3.5 after the test.


4.5 Test procedures.

4.5.1 Driver safety of operation and firing test. The driver shall betested to determine performance of safety requirements and safety featuresspecified in section 3. Each driver submitted shall fire at least two powerloads of not less than No. 7 strength in both vertical and horizontalpositions. No drive pins shall be used during the test. After the firingtest each driver shall be examined. The safety features specified.

4.5.2 Safety attachment kit firing test. Each class IV driver with safetyattachment kit selected in accordance with 4.2.2.2 shall fire at least fivepower loads of not less than No. 5 strength into a wooden test fixture toassure that the arresting attachment will capture the piston and pin in freeflight when overtravel occurs. After the firing test, a visual examinationshall be conducted to detect any defects or mutilation of the arrestingattachment. Any evidence of defects or mutilation of arresting attachmentshall be cause for rejection.

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4.5.2.1 Hardness test (drive pins). One half of the sample drive pinsselected in accordance with 4.2.2.2 shall be tested on a Rockwell tester todetermine whether the fasteners conform to the required Rockwell hardness of45 or 55 on the "C" scale. The reading shall be taken on the "C" scale usinga diamond penetrator and employing a 150 Kilogram load. Only the necessaryminimum amount of material shall be removed at the point of measurement. AGeneral Electric metals comparator with a properly selected and calibratedtest coil, or other instrument of equal sensitivity in accurately determininghardness, may be used as an alternate procedure for determining the hardnessof drive pins. Any nonconforming drive pin shall be rejected. If the numberof nonconforming pins in any hardness sample exceeds the acceptance numberfor the sample, the lot represented by the sample shall be rejected.

4.5.2.2 Bend test (drive pins). One of every 10 sample drive pinsselected in accordance with 4.2.2.2 shall be subjected to a bend test. Theshank of each knurled pin tested shall be capable of bending a minimum of 15deg. over a radius equal to the shank diameter without fracturing. Otherpins shall be capable of bending a minimum of 45 deg.

4.6 Inspection of preparation for delivery. Drivers, drive pins, powerloads, and packages shall be selected and inspected to verify conformance tothe requirements of section 5. All packages offered at the same time shallbe considered a lot. Samples shall be selected in accordance with MIL-STD-105 at inspection level I with an AQL of 2.5 percent defective.

5. PREPARATION FOR DELIVERY

5.1 Preservation and packaging. Preservation and packaging shall be levelA or C, as specified (see 6.2)

5.1.1 Level A. Component parts of the driver, accessories, and fastenerssubject to corrosion shall be cleaned by process C-1 and coated with type P-9preservative, in accordance with MIL-P-116.

5.1.1.1 Driver. The driver and accessories shall be wrapped withgreaseproof barrier material conforming to MIL-B-121, type I, grade A, class2, secured with pressure-sensitive tape conforming to PPP-T-60, type III,class 3, and unit packaged in accordance with method 1A-2, or 1A-14 of MIL-P-116, using a fiberboard box conforming to PPP-B-636.

5.1.1.2 Drive pins and power loads. Drive pins and power loads of likedescription shall be unit packaged in accordance with method 1A of MIL-P-116,in quantities of 100 each unless otherwise specified (see 6.2), using snug-fitting folding or setup boxes conforming to PPP-B-5666 or PPP-B-676, as thecontainer. The cartons containing the fasteners shall be lined withgreaseproof barrier material conforming to MIL-B-121, type I, grade A, class2.

5.1.1.3 Intermediate packaging. The driver and accessories, repair parts,tools, and publications comprising a complete unit shall be packaged togetherin the carrying case. Cushioning shall be provided within the case. The lidshall be closed and secured with the means provided. The lid joints shall besealed with pressure-sensitive tape conforming to PPP-T-60, type III, class1. Surfaces to which the tape will adhere shall be coated with pressure-sensitive tape primer conforming to MIL-P-3542, before the tape is applied.

5.1.1.3.1 Drive pins and power loads. Packaged drive pins and power loadsof like description, shall be intermediate packaged in snug-fittingfiberboard boxes conforming to PPP-B-636, in quantities not to exceed the


weight limitation of the box specification. The boxes shall be closed andsealed in conformance with the appendix to the box specification.

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5.1.2 Level C. The driver and accessories, power loads, and drive pinsshall be preserved and packaged to afford protection against deteriorationand damage during shipment. Packaged quantities shall be as specified.

5.2 Packing. Packing shall be level A, B, or C, as specified (see 6.2).

5.2.1 Level A. Intermediate packages of like description shall be packedin quantities not to exceed 200 pounds gross weight in overseas type snug-fitting nailed wood boxes conforming to PPP-B-621 (class 2) or wood cleatedplywood boxes conforming to PPP-B-601. The boxes shall be closed andstrapped in conformance with the appendix to the applicable boxspecification. Shipping containers shall have case liners conforming to MIL-L-10547 and shall be closed and sealed in accordance with the appendixthereto.

5.2.2 Level B. Intermediate packages of like description shall be packedin domestic type snug-fitting wood cleated fiberboard, wood cleated plywood,nailed wood, or wirebound wood boxes conforming to PPP-B-591, PPP-B-601, PPP-B-621, and PPP-B-585, respectively. Gross weight shall not exceed 200pounds.

5.2.3 Level C. The driver and accessories, drive pins, and power loadsshall be packed to insure carrier acceptance and safe delivery atdestination. Shipping containers shall comply with the rules and regulationsapplicable to the mode of transportation.

5.3 Marking.

5.3.1 Civil agencies. In addition to special marking required by thecontract or order, the interior packages and shipping containers shall bemarked in accordance with Fed. Std. No. 123.

5.3.2 Military activities. In addition to special markings required bythe contract or order, the interior packages and shipping containers shall bemarked in accordance with MIL-STD-129.

5.3.3 Marking for containers of power loads. In addition to 5.3.1 and5.3.2 as applicable, marking for containers of power loads shall conform to49 CFR 71-78.

6. NOTES

6.1 Intended use. Powder-actuated drivers and drive pins covered by thisspecification are designed for above water use only, and are intended to beused by authorized craftsmen to fasten timber studs or sleepers to mild steelor concrete, or mild steel to mild steel.

6.2 Ordering data. Purchasers should select the preferred optionspermitted herein and include the following data in procurement documents:

(a) Title, number, and date of this specification. (b) Class and style required (see 1.2.1). (c) Size and style of drive pins required (see 1.2.2). (d) Identification of power loads required; also, size of barrel, class and size of driver (when applicable), and manufacturer of driver (see 1.2.3, 3.5, and table XIV). (e) If the driver is to be provided with special safety shields (guards) (see 3.3.2.8). If so, specify object to be fastened, together with complete dimensional description, and when


available, manufacturer's identification of the object. In the case of special structural shapes or fittings which cannot be adequately described in the above manner, the specified information shall be supplemented with a completely dimensioned sketch of the object (suitable for reproducing). If special guards are ordered later, also specify manufacturer and model of the driver being used, and class and style (when applicable), of the driver.

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(f) Special drive pin fasteners or other sizes required (see 3.4.2). (g) Selection of applicable levels of preservation, packaging, and packing required (see 5.1 and 5.2). (h) Quantity of drive pin and power loads to be unit packaged if other than in quantities of 100 (see 5.1.1.2).

6.3 With respect to products requiring qualification, awards will be madeonly for such products as have, prior to the time set for opening of bids,been tested and approved for inclusion in QPL-GG-D-777 whether or not suchproducts have actually been so listed by that date. The attention of thesuppliers is called to this requirement, and manufacturers are urged toarrange to have the products that they propose to offer to the FederalGovernment tested for qualification, in order that they may be eligible to beawarded contracts or orders for the products covered by this specification. The activity responsible for the qualified products list in the Naval ShipEngineering Center, Department of the Navy, Washington, D.C., 20360, andinformation pertaining to qualification of products may be obtained from thatactivity. Application for qualification tests shall be made in accordancewith "Provisions Governing Qualification" (see 6.4).

6.4 Copies of "Provisions Governing Qualification" may be obtained uponapplication to Commanding Officer, Navy Supply Depot, 5801 Tabor Ave.,Philadelphia, Pa., 19120.

MILITARY CUSTODIANS: Army - GL Navy - SH Air Force - 69

Review activities: Army - GL Navy - SH YD

User activity: Army--MO

CIVIL AGENCY: GSA--FSS

Preparing activity:Navy--SH

U. S. Government Printing Office: 1966--253349/111

Orders for this publication are to be placed with General ServicesAdministration, acting as an agent for the Superintendent of Documents. SeeSection 2 of this specification to obtain extra copies and other documentsreferenced herein. Price 15 cents each.

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